E-Flora BC: Electronic Atlas of the Flora of British Columbia

Juncus triglumis subsp. albescens
whitish rush
Juncaceae (Rush family)

Introduction to Vascular Plants

© Hans Roemer  Email the photographer   (Photo ID #22987)

E-Flora BC Static Map
Distribution of Juncus triglumis subsp. albescens
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Species Information

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Perennial, tufted herb from fibrous roots; stems erect, 7-20 cm tall.
Basal, nearly circular in cross-section, tapered, lacking cross-walls.
Inflorescence a single, terminal head of 2 to 6 flowers, the flowers lacking bractlets; perianth segments pale brown or whitish, 3.5-5 mm long, pointed, subequal; stamens 6; anthers 0.6-1 mm long, shorter than the filaments; involucral bracts awned, longer than the flowers.
Capsules, cylindrical, pointed, shorter than or equal to the perianth segments, pale; seeds spindle-shaped, about 1.8 mm long, with appendages at each end.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet calcareous fens in the montane to alpine zones; rare in BC east of the Coast Mountains; N to AK, YT and NW NT and S to NM, UT, ID and OR.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Juncus triglumis ssp. albescens

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 30 898 1483
Slope Gradient (%) 0 1 5
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 345 280
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 7 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: CWH(2), ESSF(2), SWB(1)

Synonyms and Alternate Names

Juncus albescens (Lange) Fernald

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References